What does a shotgun barrel without rifling mean?

It is a smoothbore.

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  1. It fires only slugs
  2. It cannot use chokes
  3. It is a smoothbore ✔

Why: Smoothbore barrels have no rifling on the inner wall. Most shotguns are smoothbore, though slug barrels can be rifled.

Huh, didn't know that: Smoothbore barrels have no rifling on the inner wall. Most shotguns are smoothbore, though slug barrels can be rifled.

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A smoothbore keeps things rolling along.
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References

Answer: It is a smoothbore. Smoothbore barrels have no rifling on the inner wall. Most shotguns are smoothbore, though slug barrels can be rifled.

  1. Shotgun en.wikipedia.org/wiki/Shotgun
    Shotguns are most commonly used as smoothbore firearms, meaning that their gun barrels have no rifling on the inner wall
    Checked 2026-11-07.

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